Principal Changes of Vowels in Middle English and Early New English (Tables)
§ 401. The main qualitative and quantitative changes of vowels between the 11th and 18th c. are summarised in Tables 7 and 8. (The tables do not show the changes of vowels caused by the vocalisation of consonants, that is the growth of new diphthongs and long monophthongs due to the loss of [j, x, x'] and [r]; for these changes see relevant paragraphs.)